Astellas ISR Portal - Welcome
Investigator Sponsored Research Portal
We are now accepting new ISR proposals from the United States of America only and, at this moment, just for Enzalutamide and Gilteritinib. All other countries may continue to use the portal to provide updates to active studies.
Should you have any questions, please reach out to the Medical Affairs contact in your region or by contacting
or if US-based, call 1 (844) 827-9913.
This is your place to manage all of your investigator-sponsored research with Astellas.
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